SYMPOSIA PAPER Published: 01 January 1999
STP13297S

Field Performance of Single-Ply, Chlorinated Polyethylene (CPE) Roof Membranes

Source

This paper will present the results of a field study of 29 different recover roofing systems installed on a variety of buildings. All of the buildings were located in Southeast Texas and were exposed to a variety of conditions related to use, coastal environment and drainage characteristics. Installation methods included mechanically fastened and fully-adhered (fleece-backed) membranes. Substrates included a number of different deck types and original membrane types, as well as various recover insulation materials, including glass fiber, perlite, wood fiber and expanded polystyrene (EPS). A number of these roofs exhibited areas of chronic and long-term ponded water. An intensive visual study was made regarding the effect of ponding on the CPE roof systems and the deterioration occurring in those locations. Laboratory testing on a number of the roofs revealed aging effects on some membrane physical properties. A number of other performance characteristics are assessed and general observations presented, including detailing practices and conformance with industry standards.

Author Information

French, WR
French Engineering, Inc., Houston, Texas
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Details
Developed by Committee: D08
Pages: 43–59
DOI: 10.1520/STP13297S
ISBN-EB: 978-0-8031-5399-8
ISBN-13: 978-0-8031-2494-3